The people doing this are directly attempting to destroy a culture and replace It with their own. I think that should have some repercussions?
Having briefly participated in some illegal and covert missionary work, I hope they are stopped. Of course when your mission is from heaven then no risk is too great. Looking back from the outside, it does amaze me the logic pretzels one learns to make to justify stuff like this when raised in the church.
That said, IME, some of these groups do have decent opsec, and they have to considering the penalties in certain countries.
That's just straight-up fanatacism, right there.
This is not saying that cultures shouldn’t evolve, adapt, and embrace changing environments, but rather that it is probably a disservice to humanity for one culture to informatically infiltrate and destroy another without an appropriate contest that would establish a hierarchy of fitness. Even then, what kind of fitness? What is a fair contest? Etc etc etc.
Best just to let it be, and let them work out their best way forward.